User usukidoll - Japanese Language Meta Stack Exchange

usukidoll

Member for 9 years, 9 months
Last seen more than 9 years ago

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Yearling

Nov 13, 2019

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8

$R$ is transitive if and only if $ R \circ R \subseteq R$

8

How do I solve $y''+4y=0$?

8

Which rational primes less than 50 are also Gaussian primes?

6

Determining which pairs of quantified statements are equivalent

5

Prove that the inequality $(1+ \frac{1}{n})^n < n$ holds for all $n \geq 3$